World renowned for its myriad of underwater life, the Sea of Cortez is considered one of the eight best dive locations in the world. Only the North Coral Sea and the Red Sea have a greater diversity of marine life. And the Sea of Cortez has the greatest diversity of marine mammals in the world! San Carlos, our gateway to the Sea of Cortez, is an easy five hour drive by four-lane highway. Alternatively, a 1-hour flight, or a leisurely drive or bus ride from Tucson, and provides a safe, convenient and inexpensive way to explore this vast marine menagerie. In an afternoon, it is possible to see rowdy sea lions, playful dolphins, breaching whales, sea horses, bright nudibranchs, morays, and vivid angelfish.